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Men’s Thermal Underwear Set
Beat the cold with ease
Don't let the chilly weather ruin your comfort. The Ortorex thermal underwear will efficiently trap your body heat, keeping you warm.

Moisture-wicking
The fabric will draw sweat away from your skin, helping you stay dry and comfortable. This will prevent the risk of catching a cold.

Elastic
Our thermal underwear allows a full range of motion, perfect for any activity. You'll move freely and comfortably without feeling restricted.

Lightweight
You won't even notice you're wearing it.
Size guide

Size | Length | Bust | Sleeve | |||
---|---|---|---|---|---|---|
cm | inch | cm | inch | cm | inch | |
L | 65 | 25.6 | 84 | 33.1 | 58 | 22.8 |
XL | 67 | 26.4 | 88 | 34.6 | 59.5 | 23.4 |
2XL | 69 | 27.2 | 92 | 36.2 | 61 | 24 |
3XL | 70 | 27.6 | 96 | 37.8 | 62.5 | 24.6 |

Size | Length | Waist | Hips | |||
---|---|---|---|---|---|---|
cm | inch | cm | inch | cm | inch | |
L | 97 | 38.2 | 78 | 30.7 | 88 | 34.6 |
XL | 99 | 38.9 | 82 | 32.3 | 92 | 36.2 |
2XL | 101 | 39.8 | 86 | 33.9 | 96 | 37.8 |
3XL | 103 | 40.6 | 90 | 35.4 | 100 | 39.4 |
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Surprisingly lightweight but still very warm. Keeps me dry even when I'm active. They're flexible enough for jogging or lounging around. Awesome durability too!
These fit snugly without any restriction. Whether I'm skiing or just walking the dog, the warmth and comfort it provides is incredible. Breathability is a bonus.
I wore them during a winter hike and stayed warm. Love how they feel barely there, yet trap heat so well. Best choice I made.
I absolutely love how warm and cozy these thermals keep me. They wick away moisture, and I've had no issues with sweat. The elasticity is impressive, making them ideal for active winter activities like skiing.
These are my go-to when the temperature drops. They're snug without being restrictive, and moving around feels entirely natural. Plus, the moisture-wicking is a lifesaver on prolonged hikes.
This thermal set is terrific. I wore it on a winter camping trip and didn't feel the cold at all. The flexibility allows for smooth movement, and it's lightweight enough that it never felt bulky.

Jessica B.
Customer Happiness Hero
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Individuals’ medical conditions vary, and the use of our products is not guaranteed to be 100% effective for everyone.
If you’re dealing with clinical disease or chronic pain, please consult with your physician for medical advice regarding your medical condition.